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Default French Drain Q (just curious)


In the dept. of poured-concrete construction, house-building 101 looks
something like:

1.) Dig large rectangular hole in ground.
2.) Set concrete forms.
3.) Pour footings.
4.) Lay drain pipes, etc
5.) Pour foundation walls.
6.) Pour Basement Floor.

The BF conforms to the shape of the ground at the time poured.

20-60 years later, the ground under the BF might have shifted, and
not necessarily uniformly. So the owner, given water problems in the
basement, considers "waterproofing" the bsmt. with French Drain system
and sump pump(s).

If FD system is initiated, what guarantees that the BF will not
shift/tilt when they knock off the concrete around the perimeter
of the BF, such that what's left of the BF is no longer sitting
on the footings? Keep in mind that there's no way to know exactly
how the footings were constructed before beginning the work.

Inquiring minds floggin' well ask potentially dumb questions sometimes. :-)

Peetie
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Default French Drain Q (just curious)


"Peetie Wheatstraw" wrote in message
...

In the dept. of poured-concrete construction, house-building 101 looks
something like:

1.) Dig large rectangular hole in ground.
2.) Set concrete forms.
3.) Pour footings.
4.) Lay drain pipes, etc
5.) Pour foundation walls.
6.) Pour Basement Floor.

The BF conforms to the shape of the ground at the time poured.

20-60 years later, the ground under the BF might have shifted, and
not necessarily uniformly. So the owner, given water problems in the
basement, considers "waterproofing" the bsmt. with French Drain system
and sump pump(s).

If FD system is initiated, what guarantees that the BF will not
shift/tilt when they knock off the concrete around the perimeter
of the BF, such that what's left of the BF is no longer sitting
on the footings? Keep in mind that there's no way to know exactly
how the footings were constructed before beginning the work.

Inquiring minds floggin' well ask potentially dumb questions sometimes.
:-)



On the French Drains that I have seen installed inside of the basement there
is no destruction of the footings or foundation. Small holes are drilled
into the bottom of the first course of block and the water weeps through
those into the trench.

Please don't abbreviate in the future. I thought BF was your "Boy Friend".

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